Improvement in teeadle foe peopelling sewing-machines



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Lettera Patent No. 74,0Q7, dated February 4, 1868,.

IMPROVEMENT .IN TREADLE FO PROPELLING SEWING-MACHINES.

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TQAIlL WHOM IT MAY CONCERN:

Beit known that we, BENJAMIN Ru'rrnn and HIXsYoN HUNT, of NewLexingtonfin the county of Perry, and State of Ohio, haveeinvented a newand improved TreadlevPowenfor Operating Sewing-Machines; and we dohereby declare that the following is a full, clear, and exactdescription ofthe construction and operation of the same, referencebeing' had to the accompanying drawings, making a part of -thisspeciiication, inwhichl A Figure 1 is a front view of our improvedtreadle-power for` operating sewng-machines.

Figure 2'is a top view, in detail, of treadles, bar and crank.

Figure 3 is a perspective `view of tre'adle.

Like letters, in the dierent igures of the drawings, indicate likeparts.

'The nature of our invention consists in the construction of 'the top ofa. sewing-machine standwith a fulcrum and balance-lever', connected withtwo trendles by means of rods, so that the balance-lever, when thetreadles are operated upon, will 4give a. uniformity of motion, andconsequently an easier and greater propellingpower to the machine.

. .To enable any one skilled in the art to make and use `our invention,wewill proceed to describe-its cn .struction and operation. i

' (fenetres-tion.

A. and C are the treadle's. B is the bar extending across the stand,with its ends pivoted in the sides, near the bottoni thereof. Thetreadle A is placed or.` the top of the bar, and secured loosely butsnugly thereto, by anges ala, `on'hoth sides of the bar, and keyedtogether by a key, b. The treadle C is also placed on the top of thebar, but fastenedthereto in such a manner as, when operated upon, thecrank D of`the bar will be sufficiently moved to operate the ily-wheelof the machine. p E E are the rods, suitably connecting the rear ends ofthe treadles with the ends-of the balance-lever F, which is secured to apivot of the fulcrum G. The fulcrum having screw-threads on the end, isinserted in a hole made in the top of the stand, and made fast theretoby a screw-nut, c. l

Operation.

When the feet are placed upon the treadles A and C, the treaclle C beingfixed to the bar B, will cause the crank D of the same to operate theily-wheel of the machine, which will he connected, in a suitable manner,with the crank; while the treadle A, being loose on the bar,'will becaused, by the balance-lever F, to operate with a. reverse motion tothat of the trendle C; consequently the power required to loperate thetwo treadles will be evenly balanced between them by the lever, so thatthctreadles can be worked with such facility as will enable the operatorto givev a uniformity of motion to the iiy-wheel of the machine.

Having thus fully described our invention, what we claim therein as new,and desire to secure by Letters Patent, is Y l p The construction'of thetop of a scwing-xnachine stand, with a fulcrum, G, and balance-lever F,in combi-- nation with the treadles A and-G, bar B, crank D, and rods EE, substantially in the manner and for the purpose as herein set forth.

April 3, 1867.

. BENJAMIN BUTTER,

HIXSON HUNT. Witnesses D. W.- D. MARSH, A. RICHARDS.

